Milk pasteurizer and separator.



W. R. THATGHER MILK PASTBURIZER AND SEPABATOR.

APPLICATION FILED JUNE 19, 1908.

Patented Mar. 23, 1909.,

2 SHEETS-SHEET 1.

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W. R. THATGHER.

MILK PASTEURIZER AND SEPARATOR.

APPLIUATION FILED JUNE 19, 1908.

92 m W M a m M -M N m U W N M m M1 m mi M v UNITED STATES remand @FFTQE.

WALTER R. THATOHER, OF OSKALOOSA, IOWA.

MILK PASTEURIZER AND SEPARATOR.

To all whom it may concern:

Be it known that I, Curran B. Tim'ronna, a citizen of the United States,residing at Oskaloosa, in the county of Mahaska and State of Iowa, haveinvented a new and useful Milk Pasteurizer and Separator, of which thefollowing is a specification.

The invention relates to a milk pasteurizer and separator.

The object of the present invention is to provide a simple, inexpensiveand efficient milk pasteurizer and cream separator, adapted to enablemilk to be subjected to the ac tion of hot and cold water successivelyfor first pasteurizing the milk and then separating the cream, andcapable of enabling the temperature of the milk to be rapidlychanged,'so that the pasteurizing and cream separating operations may bequickly performed.

With these and other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing an of the advantages of the invention.

l n the drawingszl i ure 1 is a vertical sectional View of a milkpasteurizer and cream separator, constructed in accordance with thisinvention. Fig. 2 is a vertical sectional view of the same, the coverbeing removed and the thermometer being applied to the milk receptacle.Fig. 3 is a plan view of the outer receptacle. Fig. l is a similar viewof the inner receptacle. Fig. 5 is a vertical sectional view, takensubstantially on the line 55 of Fig. 2. Fig. 6 is a detail per spectiveview, illustrating the construction of the means for detachably securingthe re movable thermometer in position within the inner receptacle.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

1 designates an outer water receptacle, preferably of cylindrical formand provided at the bottom with a cook or faucet 2 for drawing off thewater and having an approximately U-shaped filling tube 3, con- 1sisting of inner and outer vertical sides 4 and 5 and a connectingbottom portion. The

Patented March 23, 1909.

Serial No. 439,354.

I outer side, which is longer than the inner side 4, is secured to theinner face of one side of the outer receptacle and it extends from i thetop thereof to the lower portion of the same, the bottom of the fillingtube being spaced from the bottom of the outer receptacle. The innerside 4 of the filling tube is centrally arranged and is adapted todeliver the water at the center of the body of milk contained within theinner receptacle 6, provided with a central cylindrical shell 7 closedat the top and open at the bottom to com municate with the outerreceptacle. The inner receptacle is arranged in spaced relation with theouter receptacle, and the outer vertical side or portion of the fillingtube is located in the space between the inner and outer receptacles.The lower end of the inner shell is suitably secured to the bottom ofthe inner receptacle, which is provided with a central circular opening.The water is preferably supplied to the filling tube by means of afunnel 8, and as it is discharged from the upper end of the inner sidel, it flows downward around the bottom of the inner receptacle and u thesides. The inner receptacle is equippe with a horizontal air or venttube 9, located near the top of the inner shell and extended over thesame at one end of the inner receptacle and piercing such side and thesaid shell. The air tube lpermits the air to esca c from the inner shellas the water rises t ierein, so that the inner shell will be completelyfilled with water, whereby the contents of the inner receptacle will bethoroughly subjected to the action of the water both in raising andlowering the temperature of the milk. The inner receptacle is sup ortedupon horizontal rods 10 and 11, whic 1 hold t e inner receptacle abovethe bottom of the outer receptacle.

The rod 10 extends entirely across the outer receptacle, and the otherred 11 extends from the inner side of the filling tube to one side ofthe outer receptacle. The inner receptacle is equipped at the bottomwith a catch 12, which is interlocked with one of the supporting rods byartially rotating the inner receptacle, whereby the said innerreceptacle is secured to the support and is pre vented from floating inthe outer receptacle.

The catch consists of a piece of sheet metal,

or other suitable material, secured at one end to the lower face of theinner receptacle and bent at an intermediate point to off-set itsengaging portion from the lower face of the bottom of the innerreceptacle to provide a I suit the quantity of milk within the innerspace for the engaging supporting rods.

The inner rece tacle is equipped with a cover 13, provided with asubstantially con cavo-convex top and having a central strainer 14,adapted to permit the escape of the gases from the milk, and operatingto exclude flies and other insects from the inner receptacle, andadapted to permit the cover also to be employed for straining the milk.The inner receptacle extends above the outer receptacle, and the coveris preferably provided with a flange fitting within the innerreceptacle.

The outer receptacle is equipped with an over-flow pipe 15, and afterthe milk has been placed in the inner receptacle, hot water is ouredinto the outer receptacle through t 1e funnel and the filling tube untilthe temperature of the contents of the inner receptacle is raised to atemperature necessary to asteurize the milk. As the hot water is celivered to the outer receptacle at a point adjacent to the center ofthe body of milk, it effectively operates to rapidly change and raisethe temperature of the contents of the inner receptacle. The hot wateris allowed to stand within the outer receptacle until the contents ofthe inner receptacle are thoroughly pasteurized, and the water is thendrawn off through the cock or faucet 2. The milk is then subjected tothe action of the cold water, which is supplied to the inner receptaclein the same manner as the hot water, and the manner of delivering thecold water to the apparatus is equally effective in lowering thetemperature of the milk as in raising the tempera ture of the same. Thecold water is supplied until the milk is lowered to the temperaturenecessary to effect a separation of the cream.

The temperature of the contents of the inner receptacle is ascertainedby means of a removable thermometer 16, mounted on a vertical stem orsupport 17, which is provided at its lower end with a clamp 18 forengaging the horizontal air tube of the inner receptacle. Thethermometer is provided at the top with an approximately rectangularloop 19, which receives and slides on the vertical stem or support 17The vertical stem or support 17, which is preferably constructed ofmetal, has its lower end bent backward or upward on itself to provideone side or jaw of the clamp, and the other side or jaw is formed bybending the metal outward and downward, as shown. The clamp, which isresilient, is approximately inverted U-shaped, and it is adapted to bereadily engaged with and disengaged from the air tube. The slidableconnection between the thermometer and the vertical stem or supportenables the thermometer to be raised and lowered to arrange it in properposition to receptacle.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. An apparatus of the class described including an outer waterreceptacle, an inner milk receptacle arranged in spaced relation withthe outer water receptacle and provided with a shell extending upwardlyfrom the bottom of the inner receptacle and closed at the top and openat the bottom and in communication with the outer receptacle, and afilling tube composed of inner and outer vertical portions of differentlengths, and a connecting portion, the outer portion being arranged andsupported in the space between the receptacles and extending to the topof the outer receptacle in position to receive a funnel, and the innerportion being shorter than the outer portion and extending upward intothe shell of the inner receptacle.

2. An apparatus of the class described including an outer waterreceptacle, a sub stantially U-shaped filling tube composed of inner andouter vertical upwardly extending sides, and a connecting bottomportion, the inner side being arranged centrally of the outer receptacleand the outer side being secured to the inner face of one side of theouter receptacle and extending to the top thereof, supporting rodsarranged within the outer receptacle, and an inner milk receptaclemounted on the supporting rods in spaced relation with the outerreceptacle and provided with an inner shell closed at the top and havingan open lower end communicating with the outer receptacle, said shellbeing arranged over and receiving the inner side of the filling tube,the outer side of the filling tube being located within the spacebetween the inner and outer receptacles.

3. An apparatus of the class described including an outer waterreceptacle, a substantially U-shaped filling tube composed of inner andouter vertical upwardly extending sides, and a connecting bottomportion, the inner side being arranged centrally of the outer receptacleand the outer side being secured to the inner face of one side of theouter receptacle and extending to the top thereof, supporting rodsarranged within the outer receptacle, an inner milk receptacle arrangedin spaced relation with the outer receptacle and provided with an innershell closed at the top and open at the bottom to receive the inner sideof the filling tube, the outer side being located in the space betweenthe inner and outer receptacles, and a catch arranged at the bottom ofand carried by the inner receptacle and detachably engaging one of thesupporting rods.

4. An apparatus of the class described including an outer waterreceptacle provided with an over-flow tube, an approximately U-shapedfilling tube having a centrally arranged discharging portion and securedto the inner face of one side of the outer receptacle, horizontalsupporting rods arranged within the outer receptacle, one of the rodsbeing connected with the centrally arranged portion of the filling tube,an inner milk receptacle arranged on the supporting rods in spacedrelation with the outer receptacle and provided with a central shellopen at the bottom to receive the centrally arranged portion of thefilling tube, the outer portion of the filling tube being located in thespace between the inner and outer receptacles, and a 1 cover for theinner receptacle.

5. An apparatus of the class described including an outer receptacle, afilling tube having an inner upwardly extending portion, a horizontalsupporting rod, an inner receptacle arranged upon the supporting rod andprovided with an inner shell closed at the top and open at the bottom toreceive the upwardly extending portion of the filling tube, and a catchcarried by the inner receptacle and arranged at the bottom thereof anddetachably engaging the supporting rod.

In testimony, that I claim the foregoing as my own, I have heretoafiiXed my signature in the presence of two witnesses.

WALTER R. TI-IATCHER.

Witnesses TERRELL C. STEDDoM, WILLIAM CARR.

